The functionality to add users to your organisation is available only to Administrators on the account.
If you are the admin on the account, you will find a list of all users for your organisation in the 'Manage Organisation' menu, which can be found by clicking your name on the bottom left of the screen.
You can add, remove and edit the details of all users registered to your organisation in this section of the site.
Clicking on 'Invite Users' will take you to a form where you can input the three types of detail required for each user:
First name
Surname
Email address
That user will receive an invitation email with a link to activate their account. Once they have clicked this link and set up a password, their account will be marked active.
Users can be deleted and edited in this area.
If you have any queries or require assistance, please click on the blue chat button at the bottom right of the screen (while you are logged in) to talk to customer support and we will gladly help.